csshover.htc
121 lines
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TextLexer
Jean-Philippe Lang
|
r157 | <attach event="ondocumentready" handler="parseStylesheets" /> | |
| <script> | |||
| /** | |||
| * Whatever:hover - V1.42.060206 - hover & active | |||
| * ------------------------------------------------------------ | |||
| * (c) 2005 - Peter Nederlof | |||
| * Peterned - http://www.xs4all.nl/~peterned/ | |||
| * License - http://creativecommons.org/licenses/LGPL/2.1/ | |||
| * | |||
| * Whatever:hover is free software; you can redistribute it and/or | |||
| * modify it under the terms of the GNU Lesser General Public | |||
| * License as published by the Free Software Foundation; either | |||
| * version 2.1 of the License, or (at your option) any later version. | |||
| * | |||
| * Whatever:hover is distributed in the hope that it will be useful, | |||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |||
| * Lesser General Public License for more details. | |||
| * | |||
| * Credits and thanks to: | |||
| * Arnoud Berendsen, Martin Reurings, Robert Hanson | |||
| * | |||
| * howto: body { behavior:url("csshover.htc"); } | |||
| * ------------------------------------------------------------ | |||
| */ | |||
| var csshoverReg = /(^|\s)(([^a]([^ ]+)?)|(a([^#.][^ ]+)+)):(hover|active)/i, | |||
| currentSheet, doc = window.document, hoverEvents = [], activators = { | |||
| onhover:{on:'onmouseover', off:'onmouseout'}, | |||
| onactive:{on:'onmousedown', off:'onmouseup'} | |||
| } | |||
| function parseStylesheets() { | |||
| if(!/MSIE (5|6)/.test(navigator.userAgent)) return; | |||
| window.attachEvent('onunload', unhookHoverEvents); | |||
| var sheets = doc.styleSheets, l = sheets.length; | |||
| for(var i=0; i<l; i++) | |||
| parseStylesheet(sheets[i]); | |||
| } | |||
| function parseStylesheet(sheet) { | |||
| if(sheet.imports) { | |||
| try { | |||
| var imports = sheet.imports, l = imports.length; | |||
| for(var i=0; i<l; i++) parseStylesheet(sheet.imports[i]); | |||
| } catch(securityException){} | |||
| } | |||
| try { | |||
| var rules = (currentSheet = sheet).rules, l = rules.length; | |||
| for(var j=0; j<l; j++) parseCSSRule(rules[j]); | |||
| } catch(securityException){} | |||
| } | |||
| function parseCSSRule(rule) { | |||
| var select = rule.selectorText, style = rule.style.cssText; | |||
| if(!csshoverReg.test(select) || !style) return; | |||
| var pseudo = select.replace(/[^:]+:([a-z-]+).*/i, 'on$1'); | |||
| var newSelect = select.replace(/(\.([a-z0-9_-]+):[a-z]+)|(:[a-z]+)/gi, '.$2' + pseudo); | |||
| var className = (/\.([a-z0-9_-]*on(hover|active))/i).exec(newSelect)[1]; | |||
| var affected = select.replace(/:(hover|active).*$/, ''); | |||
| var elements = getElementsBySelect(affected); | |||
| if(elements.length == 0) return; | |||
| currentSheet.addRule(newSelect, style); | |||
| for(var i=0; i<elements.length; i++) | |||
| new HoverElement(elements[i], className, activators[pseudo]); | |||
| } | |||
| function HoverElement(node, className, events) { | |||
| if(!node.hovers) node.hovers = {}; | |||
| if(node.hovers[className]) return; | |||
| node.hovers[className] = true; | |||
| hookHoverEvent(node, events.on, function() { node.className += ' ' + className; }); | |||
| hookHoverEvent(node, events.off, function() { node.className = node.className.replace(new RegExp('\\s+'+className, 'g'),''); }); | |||
| } | |||
| function hookHoverEvent(node, type, handler) { | |||
| node.attachEvent(type, handler); | |||
| hoverEvents[hoverEvents.length] = { | |||
| node:node, type:type, handler:handler | |||
| }; | |||
| } | |||
| function unhookHoverEvents() { | |||
| for(var e,i=0; i<hoverEvents.length; i++) { | |||
| e = hoverEvents[i]; | |||
| e.node.detachEvent(e.type, e.handler); | |||
| } | |||
| } | |||
| function getElementsBySelect(rule) { | |||
| var parts, nodes = [doc]; | |||
| parts = rule.split(' '); | |||
| for(var i=0; i<parts.length; i++) { | |||
| nodes = getSelectedNodes(parts[i], nodes); | |||
| } return nodes; | |||
| } | |||
| function getSelectedNodes(select, elements) { | |||
| var result, node, nodes = []; | |||
| var identify = (/\#([a-z0-9_-]+)/i).exec(select); | |||
| if(identify) { | |||
| var element = doc.getElementById(identify[1]); | |||
| return element? [element]:nodes; | |||
| } | |||
| var classname = (/\.([a-z0-9_-]+)/i).exec(select); | |||
| var tagName = select.replace(/(\.|\#|\:)[a-z0-9_-]+/i, ''); | |||
| var classReg = classname? new RegExp('\\b' + classname[1] + '\\b'):false; | |||
| for(var i=0; i<elements.length; i++) { | |||
| result = tagName? elements[i].all.tags(tagName):elements[i].all; | |||
| for(var j=0; j<result.length; j++) { | |||
| node = result[j]; | |||
| if(classReg && !classReg.test(node.className)) continue; | |||
| nodes[nodes.length] = node; | |||
| } | |||
| } | |||
| return nodes; | |||
| } | |||
|
Jean-Philippe Lang
|
r1011 | ||
| window.parseStylesheets = parseStylesheets; | |||
|
Jean-Philippe Lang
|
r157 | </script> |